Humidifier



Nov. 29, 192 7.

H. C. RIDLER HUMIDIEIER Filed 'March '19. x192e:

`that is constructed to throw a very t atented on. 29, i927..

PATE

HUMIDIFIER.

.Application led March 19, 1226. Serial No. 95,903.

My invention provides a simple and ecient humidifier for application tosteam and hotl water radiators and, generally stated, consists of thenovel devices, combinations of devices and arran ement of partshereinafter described and de ed in the claims.

The humidifer includes a spraying nozzle in fanshaped water or vaporfilm in a plane parallel and adjacent to one sideof the radiator; andthis spraying nozzleis associated with an u right shield that operatesas a "splash boar and is connected at its bottom to a drip pan.

The shield is preferably located just back of the radiator or betweenthe radiator and the wall and the vapor lm is projected in lthe spacebetween the shield and the back of the radiator. The above and otherminor but important features will appear in the following description ofthe invention as illustrated in the drawings.

Referring to the drawings wherein like characters indicate like partsthroughout the several views,

Fig. 1 is a ,front elevation view showing an ordinary steam or hot waterradiator, the circulating pipes thereto and therefrom and the valvestherefor not being shown;

Fig. 2 is a vertical section taken on the line 2-2 of Fig. 1;

Fig. 3 is a perspective showing the shield and drip pan removed fromworking position;

Fig. 4 is a detail partlyin elevation and partly in axial sectionshowing a filteringI device interposedin the water supply pipe to thespraying nozzle;

Fig. 5 is a detail view partly in front elevation and partly` in axialsection showing the spraying nozzle and coupling to which it isattached;

Fig. 6 is a detail in section on the line 6--6 of Fig. 5;

Figs. 7,18 and 9 are detail views in elevation illustrating progressivesteps in the making of the spraying nozzle; and

Fig. 10 is a ragmentary elevation illustrating a plural arrangement ofspraying nozzles.

rihe numeral 10 indicates an ordinary steam or hot water radiator madeup of sections connected in the customary way and as usual mountedadjacent to a wall A. Arranged just back of the radiator and between thesame and the wall is an upright shield l1 preferably of sheet metalformed with upright side flanges 12 and with a flanged upper portion 13.In-the preferred arran ement, this shield is, at its lower portion, t'

ted into a drip pan 14, and it will be notedl that the side anges 12 arefitted against the end flanges 14a of said drip pan.

By reference to Fig. 1, it will be seen that the drip pan and shield areslightly shorter than the radiator so that the pan will pass between-thelongitudinally spaced legs of the radiator and the side flanges 12 willalign with lspaces between the extreme end-and adjacent radiatorsections. By reference to Fig. 2, it will be notedthat the drip pan isso set that it underlies most of the radiator and that the verticaliianges 12 will project slightly into .the spaces between theradiatorsections, thereby producing an underlapping of said ilanges 12 with theradiator sections. The drip pan 14 is shown as provided with a drainpipe 15 to carry off surplus water.

The nozzle employed for producing the very thin fan-like spray of wateris so located that the vapor spray thereof will be projected in avertical .plane in the space directly between the shield and theradiator. This nozzle is formed with an externally threaded tubularshank 16 and with a head 17, which latter has a very narrow diametricaldischarge passage 18. The nozzle may be supported 1n various differentways and connected to any suitable source of water supply ed underpressure. As shown, its threa shank 16 is screwed into theupturned niple of a i"'coupling 19 into the opposite en s of which horizontalcoupling pipe sections 20 and 21 are tted. rlhe outer end of the pipe 21is closed by a cap 22. The extendedA end of the pipe 20 is connected tothe casing of a valve 23-that receives water from a suitable sourceunder pressure such as the city water main connection, through a pipe24.

The discharge passage 18 of the nozzle is so thin that it might beplugged by even quite small objects carried in the water and, hence, toremove such objects from the water, I preferably use a lter. This lter,as shown, is afforded by a filtering material 25 contained in a. tube 26that is lnterposed in the pipe 20, and is connected thereto by areducing coupling 27 and by'a pipe union 28. This discharge passage 18is primarily formed by sawing a slit 18 through the head 17, asbestshown in'Fig. 7. rlfhis slit 18 will beformed by a very thin saw. Thenof a mist.

the slit head is pressed together, as shown in Fig. 8, and then theextreme sides of the head are closed by solder 18", as best shown inFigs. 5 and 9. The thickness of the slit 18a and the formed dischargepassage 18 is much exaggerated in the drawings. In fact, the dischargepassage 18 is so extremely thin,

less than that of ordinary writing paper), t at the spray of waterdischar ed therefrom in the angle between the ra iatin arrows marked onFig. 1 Ywill be in the orm This mist-like thin fan-shaped spray will beprojected primaril in the space between the radiator and t e shield andwill be stopped by the vertical flanges 12, but some of the mist will belodged on the radiator, and the latter, being hot, will increase therate oiievaporation. The hot air in the space between the radiator andshield will, of course, move upward, and as the water spray is projectedin an upward direction and is of mist-like form, the evaporation will berapid and. the vapor will be carried upward and into the room. The rateof evaporation is increased to a maximum and the precipitation of thewater into the drip pan will be decreased to a minimum by the fact thatthe spray is projected upwardly and into the upwardly movingfhot aircurrent. With the flanges 12 interlapped with the sections of theradiator, no space is left through which any part of the spray can beprojected directly out of the space between the radiator and shield andhence the water discharged from the nozzle must either be evaporated andcarried u ward with the air current or be precipitate onto the drip pan.

The eliciency of this humidifier has been demonstrated in practice. Ithas been the common fault with humiditiers hitherto rovided that theylack capacity to pro uce that kind of moisture that is required in aroom or building heated by steam, water or vapor. By means of the valve23 the supply of water to the nozzle and hence the amount and when thewater de 'very is set for a maximum the evaporation of water into theair will be correspondingl increased to meet any requirements. Theliumidilier has the further advantage that it may be readily applied tothe radiator of any hot water, vapor or steam heating system, and is oflow cost.

By reference to Figs. 1, 2 and 3, it will be noted that the water supplypipe 20-21 is extended through the side flan es 12 of the shield 11 andis supported there y, with the cap 22 and the valve casing 23 justoutside of the shield.

Fig. 10 illustrates a modified arrangement in which several of the sraying nozzles 17 are connected by T-coup ings 29 to a supplementalwater supply pipe 30, which, 1n turn, is connected b a short pipesection 31 to the water supp y pipe 20-21.

Noclaim is herein made to the specific form of operating nozzle, and sofar as this invention is concerned, an suitable spraying nozzle .may becmployed What I claim is:

1. The combination with a radiator and an upright shield locatedadjacent to one side thereof, of a nozzle arranged to project a sprayupwardly in the space between said radiator and shield, and means forsupplying water under pressure to the nozzle.

2. .The combination with a radiator and an upright shield locatedadjacent to one side thereof, of a nozzle arranged to project a sprayupwardly in the space between said radiator and shield, means forsupplying water under pressure to the nozzle, and a drip pan extendingfrom the bottom of said shield and under the radiator.

3. Ihe structure defined in claim 2 in which said drip pan and shieldare independently formed, but in which the former tits within thelatter.

4. The structure defined in claim 2 in which the shield has flanges' andin which the means for supplying water to the nozzle under pressureincludes a cross pipe seated in the angesof said shield.

In testimony whereof I afiix my signature.

HARRY C. RIDLER.

